Many patients experience improvement in side effects, including lightheadedness, after the initial adjustment period of 4-8 weeks
Coupled with their high molecular weight and high polarity, it is usually difficult to penetrate the gastrointestinal epithelial cell membrane, resulting in low oral bioavailability
, should only be taken as a basic guide
Additionally, applications might be limited by the lack of concordance between mouse and human studies that can possibly be explained by differences in dose, route and duration of administration, discrepancy between experimental models for diabetes and human diabetes, and specific intestinal environments in the different hosts
Both compounds require baseline screening and periodic monitoring to ensure appropriate GH elevation without unintended hormonal shifts